EP0947896A1 - Miniature electronic device - Google Patents
Miniature electronic device Download PDFInfo
- Publication number
- EP0947896A1 EP0947896A1 EP98941745A EP98941745A EP0947896A1 EP 0947896 A1 EP0947896 A1 EP 0947896A1 EP 98941745 A EP98941745 A EP 98941745A EP 98941745 A EP98941745 A EP 98941745A EP 0947896 A1 EP0947896 A1 EP 0947896A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display
- shutter
- electronic apparatus
- signal
- basis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 59
- 238000010521 absorption reaction Methods 0.000 description 16
- 210000002858 crystal cell Anatomy 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002932 luster Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 210000000707 wrist Anatomy 0.000 description 3
- 241000282887 Suidae Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0023—Visual time or date indication means by light valves in general
- G04G9/0029—Details
- G04G9/0047—Details electrical, e.g. selection or application of the operating voltage
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
Definitions
- the present invention relates to a shutter that is opened or closed for switching between an information display state and a display shutout state of, e.g., a liquid crystal panel constituting an information display unit in a small-sized electronic apparatus, as well as to opening/closing control of the shutter.
- Opening/closing shutter units for use in opening/closing information display parts of small-sized electronic apparatuses, e.g., wristwatches, to alternate between an information display state and a display shutout state have hitherto been known, although most conventional opening/closing shutter units employed mechanical mechanisms.
- the present invention was conceived in view of the above problems. It is therefore the object thereof to provide a small-sized electronic apparatus which is free from use of, e.g., a complicated mechanical structure and a complicated switch mechanism acting as an operative member for opening/closing control thereof, and which even when worn around the wrist for use, is easy to wear since it has a thickness and weight no different from the conventional watch, and which can be easily manufactured at lower costs with reduced possibility of failure.
- a small-sized electronic apparatus in accordance with the present invention having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from the information generating means, and a display unit for providing an information display on the basis of an output signal from the display drive means, comprises switch means for detecting a switch input, and display shutout control means for providing switching control of the display unit between an information display state and a display shutout state on the basis of an output signal from the switch means.
- display information of the display unit may be subjected to a display shutout by liquid crystal shutter means which uses liquid crystal and is provided in the display unit.
- liquid crystal shutter means which uses liquid crystal and is provided in the display unit.
- the switch means can be sensor switch means for detecting a sensor switch input.
- the sensor switch as the switch means, switching would be feasible by various sensing functions.
- arrangement can be such that the display shutout control means provides the display unit with a switching control from the display shutout state to the information display state or with a switching control from the information display state to the display shutout state, on the basis of an output signal from the switch means.
- the small-sized electronic apparatus in accordance with the present invention may further comprise timer control means for performing a timer counting action on the basis of an output signal from the switch means such that the display shutout control means can provide the display unit with a switching control from the information display state to the display shutout state or a switching control from the display shutout state to the information display state on the basis of a time-out signal from the timer control means.
- timer control means for performing a timer counting action on the basis of an output signal from the switch means such that the display shutout control means can provide the display unit with a switching control from the information display state to the display shutout state or a switching control from the display shutout state to the information display state on the basis of a time-out signal from the timer control means.
- a reflection type deflecting plate can preferably be used as the liquid crystal shutter means.
- the display part of the display unit can provide a shutter unit presenting a metallic luster in response to the incidence from the external light source in the display shutout state.
- the display unit may be provided with a switch member, a shutter unit in the form of a shutter having a switch operation opening indicative of an opening of the switch member, and shutter control means for providing opening/closing control of the shutter unit, whereby a shutter of the switch operation opening of the shutter unit is opened under control of the shutter control means.
- the shutter of the shutter unit be a liquid crystal shutter using liquid crystal.
- the small-sized electronic apparatus in accordance with the present invention may employ a reflection type deflecting plate as the liquid crystal shutter.
- the switch member and the shutter unit in the form of a shutter having a switch operative opening indicative of an opening of the switch member, as well as to make an arbitrary tone of backup light by imparting an arbitrary color to the reflection plate in the display state.
- provision at a low cost has become feasible.
- Embodiment 1 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 1 and 2.
- Fig. 1 is a system block diagram of the small-sized electronic apparatus in accordance with the present invention
- Fig. 2 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus.
- information generating means 1 comprises a reference signal generating circuit 2 and a time information generating circuit 5, with the reference signal generating circuit 2 including a time reference source 3 and a frequency dividing circuit 4.
- the time reference source 3 generates a time reference signal (32,768Hz).
- the frequency dividing circuit 4 consists of a plurality of frequency dividers accepting the time reference signal from the time reference source 3 and provides as its output a signal group of predetermined reference signals.
- the time information generating circuit 5 issues a 1-sec. step signal in the form of a time signal, on the basis of a predetermined reference signal from the reference signal generating circuit 2.
- Display drive means 6 serving as a motor drive circuit receives the 1-sec. step signal as its input and issues a 1-sec drive signal.
- An information display part 8 of a display unit 7 is composed of a pulse motor, a wheel train interlinked with the pulse motor, and hands (hour, minute, second hands) attached to the wheel train.
- the information display part 8 provides a hand driving display based on the 1-sec. drive signal.
- liquid crystal shutter means 13 are provided in the form of a liquid crystal panel of a shutter part B and include an absorption type deflecting plate 21 and a reflection type deflecting plate 22 which are layered with a liquid crystal cell 20 sandwiched therebetween as shown in Fig. 2 (illustrated in a separate manner). Furthermore, a windshield glass 23 is arranged thereover. As shown in Fig.
- the absorption type deflecting plate 21 is provided as an absorption type deflecting plate whose one deflection axis is a transmission axis X with an absorption axis on the other, while the reflection type deflecting plate 22 is provided as a reflection type deflecting plate whose one deflection axis is a transmission axis X with a reflection axis Y on the other.
- the reflection type deflecting plate for use in this embodiment can be optical film DBEF (brand name) supplied by Sumitomo 3M Ltd. Experimentally, use was made of a combination of a metal grid type deflecting plate (glass plate having a 0.2 ⁇ m pitch metal grid formed thereon), liquid crystal and a phase difference plate.
- a lustered reflection characteristic is obtained from an external light source, allowing provision of a shutter presenting a tone of metallic luster (metallic tone) for the incidence of light through the windshield glass 23 of the watch. It is natural that for acquisition of the same functions and effects as the above the absorption type deflecting plate 21 may be substituted by a reflection type deflecting plate, with the reflection type deflecting plate 22 substituted by the absorption type deflecting plate.
- a switching signal issued from switching means such as a mounting detection sensor switch, an angle (inclination) sensor switch, a touch sensor, a shock sensor and a water pressure detection sensor for detecting water pressure in addition to an ordinary button switch is fed as a control signal to display shutout control means 10 which include a control circuit 11 for controlling the opening/closing action of the shutter and a liquid crystal shutter drive circuit 12 for driving the shutter, thereby providing control of application of voltage to the liquid crystal cell 20 serving as the liquid crystal shutter means 13 of the display unit 7, to perform opening/closing of the shutter.
- the switching means 9 may provide the opening control of the liquid crystal shutter means 13 or may provide the shutting control thereof.
- a predetermined reference signal from the reference signal generating circuit 2 is fed to the liquid crystal shutter drive circuit 12 to form a shutter drive signal for driving the liquid crystal shutter means 13.
- Embodiment 2 of a small-sized electronic apparatus in accordance with the present invention is shown in Pigs. 3 and 4.
- Fig. 3 is a system block diagram of the embodiment 2 of the small-sized electronic apparatus in accordance with the present invention
- Fig. 4 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus.
- the embodiment 2 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A1.
- Fig. 3 excepting a time information generating circuit 50 in time information generating means 100, display drive means 60, an information display part 80 and a timer control circuit 14, configuration is basically identical to that of the embodiment 1, and therefore like parts are designated by the same reference numerals and are not described again.
- the liquid crystal shutter means 13 constituting the liquid crystal panel of a shutter part B1 configured in the same manner as the embodiment 1 are arranged over the information display part 80 which is a display unit 70 of the watch A1 as shown in Fig. 4.
- a switching signal issued from the switching means 9 is fed as a control signal to the display shutout control means 10 which includes the control circuit 11 for controlling the opening/closing action of the shutter and the liquid crystal shutter drive circuit 12 for driving the shutter, thereby providing control of application of voltage to the liquid crystal cell 20 serving as the liquid crystal shutter means 13 of the display unit 70, to perform opening/closing of the shutter.
- the liquid crystal shutter means 13 is switched from the display shutout state to the information display state, whereas control of the further provided timer control circuit 14 performing the timer counting action (timer counting is started based on the switching signal from the switching means 9), that is, a closing signal issued from the timer control circuit 14 due to time-out, is provided as a closing signal input to the display shutout control means 10, and this signal acts as a control signal for the display shutout to provide control of application of voltage to the liquid crystal cell 20 serving as the liquid crystal means 13 of the display unit 70 to thereby shutout the display of the liquid crystal panel.
- a desired control time e.g., 5 sec.
- the signal issued from the timer control circuit 14 may be an opening signal, but instead the output from the switching means 9 may be provided as a closing signal in order to ensure that the liquid crystal shutter means 13 is switched from the information display state to the display shutout state on the basis of the switching signal from the switching means 9 and that the information display state is restored on the basis of control of the signal issued due to time-out from the further provided timer control circuit 14 performing timer counting action.
- the timer counting action starts by use of a reset (R) function or the like.
- Embodiment 3 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 5 to 7.
- Fig. 5 is a system block diagram of the embodiment 3 of the small-sized electronic apparatus in accordance with the present invention
- Fig. 6 is a top plan view of the same small-sized electronic apparatus.
- Fig. 6(a) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is opened
- Fig. 6(b) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is closed.
- Fig. 7 is an exploded perspective view showing a schematic configuration of the display part of the same small-sized electronic apparatus.
- the embodiment 3 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A2. Except that information generating means 101 further comprises a chronological information generating circuit 15, with the provision of first display drive means 61, second display drive means 62 and a display unit 17, the watch A2 of Fig. 5 has the same configuration as that of the embodiment 2 and hence uses the same reference numerals.
- the time counter in the form of the time information generating circuit 50 counts the time and issues a time signal. Then, based on the time signal, the liquid crystal driver in the form of the first drive means 61 imparts a display drive signal to a liquid crystal display panel 20D serving as the display unit 17.
- the liquid crystal display panel 20D includes an absorption type deflecting plate 210and an absorption type deflecting plate 211 which are layered with a liquid crystal cell 201 sandwiched between. A time display appears on a time display part 5D of the liquid crystal display panel 20D.
- the chronological counter in the form of the chronological information generating circuit 15 counts the chronological measuring time and issues a chronological signal. Then, based on the chronological signal, the second display drive means 62 acting as the liquid crystal driver issue a display drive signal, providing a display of stop watch (chronological measurement) function as chronological information on a chronological display part 15D of the liquid crystal display panel 20D.
- the actuation, stop and reset to zero of the chronological information generating circuit 15 are effected by an operation switch signal from a shutter unit 18.
- a switching signal issued from the switching means 9 is fed as a control signal to shutter control means 110 which includes an opening/closing control circuit 111 for controlling the shutter opening/closing action and an opening/closing drive circuit 130 for driving the shutter, the switching signal being output as a control signal for controlling the shutter opening/closing action of the shutter unit 18.
- shutter control means 110 which includes an opening/closing control circuit 111 for controlling the shutter opening/closing action and an opening/closing drive circuit 130 for driving the shutter, the switching signal being output as a control signal for controlling the shutter opening/closing action of the shutter unit 18.
- the opening/closing drive circuit 130 is fed with a predetermined reference signal from the reference signal generating circuit 2.
- a liquid crystal shutter panel 20A constituting the shutter unit 18 includes as shown in Fig. 7 an absorption type deflecting plate 21 and a reflection type deflecting plate 22 which are layered with a liquid crystal cell 202 interposed therebetween, the cell having segmented therein a time information shutter window 5A, a chronological information shutter window 15A, as well as a start/ stop switch window 31A and a reset switch window 32A.
- the shutter unit 18 of the shutter part B2 allows the time information shutter window 5A and chronological information shutter window 15A as well as the start/ stop switch window 31A and reset switch window 32A, all of which are segmented in the liquid crystal cell 202 of the liquid crystal shutter panel 20A, to be put in the display states due to the application of voltage, allowing the time information and chronological information displayed on the time display part 5D and the chronological display part 15D of the underlying display unit 17 to be visible through the windshield glass 23.
- switch members 31 and 32 for actuating, stopping and zero resetting the chronological information generating circuit 15.
- transparent electrodes are arranged substantially crosswise in plan view both on the top surface of the windshield glass 23 and on the bottom surface of a transparent touch panel so that the associated portion of the transparent touch panel 24 is pressed for contact, whereby detection parts 31B and 32B are provided for detecting the switching action.
- Switch letters 31D and 32D are also formed by printing or the like on a reflective surface 30A of a reflection plate 30 in such a manner that the detection parts 31B and 32B are coincident in geometry in top plan view with the switch windows 31A and 32A and the switch letters 31D and 32D, respectively. Therefore, simultaneously with the time display part 5D and chronological display part 15D being displayed, reflected light from the reflection plate 30 allows the switch letters 31D and 32D to pass through the switch windows 31A and 32A of the liquid crystal shutter panel 20A which has been put in the display state (shutter opened state) as a result of voltage application, and further, through the detection parts 31B and 32B sandwiched between the windshield glass 23 and the touch panel 24, rendering them visible as the switch members 31 and 32. Then, the regions of the detection parts 31B and 32B of the touch panel 24 are pressed to put them in a switched-on state, enabling the chronological information generating circuit 15 to be activated.
- Embodiment 4 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 8 to 10.
- Fig. 8 is a system block diagram of the embodiment 4 of the small-sized electronic apparatus in accordance with the present invention
- Fig. 9 is a top plan view of the same small-sized electronic apparatus.
- Fig. 9(a) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is opened
- Fig. 9(b) is atop plan view showing the state where the shutter of the same small-sized electronic apparatus is closed
- Fig. 10 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus.
- the embodiment 4 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A3. As shown in Fig. 10, this embodiment has basically substantially the same configuration as the embodiment 3 except that a single-layered liquid crystal panel presents the equivalent function although the embodiment 3 employs a two-layered liquid crystal panel.
- a signal from reference signal generating means 201 is fed to time information control means 151, chronological information control means 152 and an opening/closing drive circuit 121.
- a signal from the time information control means 151 is fed as a first display drive signal via first display drive means to a display unit 71, while a signal from the chronological information control means 152 is fed as a second display drive signal via second display drive means 62 to the display unit 71.
- a switching signal output from the switch means 9 is fed as a control signal to shutter control means 120 which include an opening/closing control circuit 112 for providing a control of opening/closing action of the shutter for switching and an opening/closing drive circuit 121 for driving the switching shutter, the switching signal being output as a control signal for controlling the shutter opening/closing action of a switching shutter unit 81 for switching.
- the switching signal output from the switch means 9 is fed to both the time information control means 151 and the chronological information control means 152.
- the opening/closing drive circuit 121 is fed with a predetermined reference signal from the reference signal generating means 201.
- a display segment 5E driven by the time information control means 151 and a display segment 15E driven by the chronological information control means 152 are put in the transmitted state, allowing the reflected light from the reflective surface 30A of the reflection plate 30 to pass through, to render the display information visible, with the display segments 5E and 15E being provided on the liquid crystal cell 200 just in an inverted state (negative state) relative to the segment display of the embodiment 3, on the basis of the switching signal from the switch means 9, and this signal is fed to the time information control means 151 and the chronological information control means 152.
- the switch letters 31D and 32D are allowed to pass through switch windows 31E and 32E of a single-layered liquid crystal display shutter panel 300 which has been put in the display state as a result of voltage application, and further through the detection parts 31B and 32B sandwiched between the windshield glass 23 and the touch panel 24, rendering them visible as the switch members 31 and 32.
- the detection parts 31B and 32B of the touch panel 24 are pressed to put them in a switched-on state, enabling the chronological information control means 152 to be actuated.
- Arrangement is such that as shown in Fig. 10 either one of the absorption type deflecting plate 21 and the reflection type deflecting plate 22 is fixed, with the other deflecting plate being rotated.
- a reflection characteristic is exhibited without any voltage application with the 90 o twisted nematic (TN) liquid crystal cell 200 interposed, whereas a transmission characteristic is exhibited with the presence of voltage application (voltage applied segment).
- the external light source presents a lustered reflection characteristic without any voltage application, allowing provision of a shutter with a tone of metallic luster (metallic tone) with the incidence of light through the windshield glass 23 of the watch.
- Use of the reflection type deflecting plates as both the deflecting plates would also ensure the same functions and effects as the above.
- the absorption type deflecting plate 21 was used as the upper deflecting plate with the reflection type deflecting plate 22 as the lower deflecting plate, it would also be effective to use the reflection type deflecting plate 22 as both the upper and lower deflecting plates or alternatively to use the reflection type deflecting plate 22 as the upper deflecting plate with the absorption type deflecting plate 21 as the lower deflecting plate.
- the present invention is suitable for use as a watch or other small-sized electronic apparatus.
Abstract
Description
- The present invention relates to a shutter that is opened or closed for switching between an information display state and a display shutout state of, e.g., a liquid crystal panel constituting an information display unit in a small-sized electronic apparatus, as well as to opening/closing control of the shutter.
- Opening/closing shutter units for use in opening/closing information display parts of small-sized electronic apparatuses, e.g., wristwatches, to alternate between an information display state and a display shutout state have hitherto been known, although most conventional opening/closing shutter units employed mechanical mechanisms.
- In the case of the opening/closing shutter units of the above conventional small-sized electronic apparatuses, however, complicated link mechanisms were driven by motors serving as drive sources, whereas the opening/closing operations of the opening/closing shutter were carried out by complicated switch mechanisms acting as the operative members for the opening/closing control. Furthermore, in a case where the opening/closing shutter unit was applied to the wristwatch for wearing around the wrist, it was fairly inconvenient and due to its larger thickness and weight arising from the fact that the opening/closing shutter unit is disposed above the body portion of the wristwatch. Also, the mechanical mechanisms must typically be built from a multiplicity of precisely machined or metal plated components by skilled operators, resulting in increased costs and frequent failures because of the complicated nature of the mechanisms. This prevented the wristwatches whose information display parts used the opening/closing shutter units from becoming widely used.
- The present invention was conceived in view of the above problems. It is therefore the object thereof to provide a small-sized electronic apparatus which is free from use of, e.g., a complicated mechanical structure and a complicated switch mechanism acting as an operative member for opening/closing control thereof, and which even when worn around the wrist for use, is easy to wear since it has a thickness and weight no different from the conventional watch, and which can be easily manufactured at lower costs with reduced possibility of failure.
- In order to achieve the above object, a small-sized electronic apparatus in accordance with the present invention having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from the information generating means, and a display unit for providing an information display on the basis of an output signal from the display drive means, comprises switch means for detecting a switch input, and display shutout control means for providing switching control of the display unit between an information display state and a display shutout state on the basis of an output signal from the switch means. This makes it possible to provide switching control of the information display part between the information display state and the display shutout state.
- In the small-sized electronic apparatus in accordance with the present invention, display information of the display unit may be subjected to a display shutout by liquid crystal shutter means which uses liquid crystal and is provided in the display unit. In the case of using the liquid crystal shutter means in particular, it would be possible to easily and at lower costs manufacture a watch which is easy to wear even when worn around the wrist since it has thickness and weight no different from a conventional watch, without using a complicated and mechanical structure. Failures can also be reduced.
- In the small-sized electronic apparatus in accordance with the present invention, the switch means can be sensor switch means for detecting a sensor switch input. In the case of using the sensor switch as the switch means, switching would be feasible by various sensing functions.
- In the small-sized electronic apparatus in accordance with the present invention, arrangement can be such that the display shutout control means provides the display unit with a switching control from the display shutout state to the information display state or with a switching control from the information display state to the display shutout state, on the basis of an output signal from the switch means.
- The small-sized electronic apparatus in accordance with the present invention may further comprise timer control means for performing a timer counting action on the basis of an output signal from the switch means such that the display shutout control means can provide the display unit with a switching control from the information display state to the display shutout state or a switching control from the display shutout state to the information display state on the basis of a time-out signal from the timer control means. This allows free setting of time control during which the display unit is put in the information display state or in the display shutout state, to achieve opening/closing or closing/opening actions.
- In the small-sized electronic apparatus in accordance with the present invention, a reflection type deflecting plate can preferably be used as the liquid crystal shutter means. The display part of the display unit can provide a shutter unit presenting a metallic luster in response to the incidence from the external light source in the display shutout state.
- In the small-sized electronic apparatus in accordance with the present invention, having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from the information generating means, and a display unit for providing information display on the basis of an output signal from the display drive means, the display unit may be provided with a switch member, a shutter unit in the form of a shutter having a switch operation opening indicative of an opening of the switch member, and shutter control means for providing opening/closing control of the shutter unit, whereby a shutter of the switch operation opening of the shutter unit is opened under control of the shutter control means.
- In the small-sized electronic apparatus in accordance with the present invention, it is preferred that the shutter of the shutter unit be a liquid crystal shutter using liquid crystal.
- Also, the small-sized electronic apparatus in accordance with the present invention may employ a reflection type deflecting plate as the liquid crystal shutter.
- In this manner, it has become possible to easily manufacture the switch member and the shutter unit in the form of a shutter having a switch operative opening indicative of an opening of the switch member, as well as to make an arbitrary tone of backup light by imparting an arbitrary color to the reflection plate in the display state. In addition, provision at a low cost has become feasible.
-
- Fig. 1 is a system block diagram of embodiment 1 of a small-sized electronic apparatus in accordance with the present invention.
- Fig. 2 is an exploded perspective view showing a schematic configuration of a display part of the embodiment 1 of the same small-sized electronic apparatus.
- Fig. 3 is a system block diagram of
embodiment 2 of a small-sized electronic apparatus in accordance with the present invention. - Fig. 4 is an exploded perspective view showing a schematic
configuration of the display part of the
embodiment 2 of the same small-sized electronic apparatus. - Fig. 5 is a system block diagram of
embodiment 3 of a small-sized electronic apparatus in accordance with the present invention. - Fig. 6 is a top plan view of the
embodiment 3 of the same small-sized electronic apparatus, with Fig. 6(a) being a top plan view showing the state where a shutter of theembodiment 3 of the same small-sized electronic apparatus is opened, and Fig. 6(b) being a top plan view showing the state where the shutter of theembodiment 3 of the same small-sized electronic apparatus is closed. - Fig. 7 is an exploded perspective view showing a schematic
configuration of
embodiment 3 of the display part of the same small-sized electronic apparatus. - Fig. 8 is a system block diagram of
embodiment 4 of a small-sized electronic apparatus in accordance with the present invention. - Fig. 9 is a top plan view of the
embodiment 4 of the same small-sized electronic apparatus, with Pig. 9(a) being a top plan view showing the state where a shutter of theembodiment 4 of the same small-sized electronic apparatus is opened, and Fig. 9(b) being a top plan view showing the state where the shutter of theembodiment 4 of the same small-sized electronic apparatus is closed. - Fig. 10 is an exploded perspective view showing a schematic
configuration of the
embodiment 4 of the display part of the same small-sized electronic apparatus. -
- Embodiments of the present invention will now be described with reference to the drawings.
- Embodiment 1 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 1 and 2.
- Fig. 1 is a system block diagram of the small-sized electronic apparatus in accordance with the present invention, and Fig. 2 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus.
- The embodiment 1 of the small-sized electronic apparatus in accordance with the present invention is described by way of example of an analog quartz watch A. In Fig. 1, information generating means 1 comprises a reference
signal generating circuit 2 and a timeinformation generating circuit 5, with the referencesignal generating circuit 2 including atime reference source 3 and a frequency dividingcircuit 4. Thetime reference source 3 generates a time reference signal (32,768Hz). The frequency dividingcircuit 4 consists of a plurality of frequency dividers accepting the time reference signal from thetime reference source 3 and provides as its output a signal group of predetermined reference signals. - Subsequently, the time
information generating circuit 5 issues a 1-sec. step signal in the form of a time signal, on the basis of a predetermined reference signal from the referencesignal generating circuit 2. Display drive means 6 serving as a motor drive circuit receives the 1-sec. step signal as its input and issues a 1-sec drive signal. An information display part 8 of adisplay unit 7 is composed of a pulse motor, a wheel train interlinked with the pulse motor, and hands (hour, minute, second hands) attached to the wheel train. The information display part 8 provides a hand driving display based on the 1-sec. drive signal. - Integrally with or separately from the thus constructed information display part 8 of the
display unit 7 of the watch A, liquid crystal shutter means 13 are provided in the form of a liquid crystal panel of a shutter part B and include an absorptiontype deflecting plate 21 and a reflectiontype deflecting plate 22 which are layered with aliquid crystal cell 20 sandwiched therebetween as shown in Fig. 2 (illustrated in a separate manner). Furthermore, awindshield glass 23 is arranged thereover. As shown in Fig. 10 ofembodiment 4, the absorptiontype deflecting plate 21 is provided as an absorption type deflecting plate whose one deflection axis is a transmission axis X with an absorption axis on the other, while the reflectiontype deflecting plate 22 is provided as a reflection type deflecting plate whose one deflection axis is a transmission axis X with a reflection axis Y on the other. In practice, the reflection type deflecting plate for use in this embodiment can be optical film DBEF (brand name) supplied by Sumitomo 3M Ltd. Experimentally, use was made of a combination of a metal grid type deflecting plate (glass plate having a 0.2µm pitch metal grid formed thereon), liquid crystal and a phase difference plate. - Description will now be given of characteristics of the above-described deflecting plate without the
liquid crystal cell 20 sandwiched. Either one of the absorptiontype deflecting plate 21 and the reflectiontype deflecting plate 22 is fixed, with the other deflecting plate being rotated. At an angle (0º) where the transmission axis X of the absorptiontype deflecting plate 21 is parallel to the transmission axis X of the reflectiontype deflecting plate 22, a transmission characteristic will appear, whereas when the reflection axis Y of the reflectiontype deflecting plate 22 is orthogonal to the transmission axis X of the absorptiontype deflection plate 21, a larger reflection intensity will be presented. For this reason, a lustered reflection characteristic is obtained from an external light source, allowing provision of a shutter presenting a tone of metallic luster (metallic tone) for the incidence of light through thewindshield glass 23 of the watch. It is natural that for acquisition of the same functions and effects as the above the absorptiontype deflecting plate 21 may be substituted by a reflection type deflecting plate, with the reflectiontype deflecting plate 22 substituted by the absorption type deflecting plate. - In order to allow the liquid crystal shutter means 13 of the shutter part B to be driven as a shutter, as shown in Fig. 1, a switching signal issued from switching means such as a mounting detection sensor switch, an angle (inclination) sensor switch, a touch sensor, a shock sensor and a water pressure detection sensor for detecting water pressure in addition to an ordinary button switch is fed as a control signal to display shutout control means 10 which include a
control circuit 11 for controlling the opening/closing action of the shutter and a liquid crystalshutter drive circuit 12 for driving the shutter, thereby providing control of application of voltage to theliquid crystal cell 20 serving as the liquid crystal shutter means 13 of thedisplay unit 7, to perform opening/closing of the shutter. The switching means 9 may provide the opening control of the liquid crystal shutter means 13 or may provide the shutting control thereof. A predetermined reference signal from the referencesignal generating circuit 2 is fed to the liquid crystalshutter drive circuit 12 to form a shutter drive signal for driving the liquid crystal shutter means 13. -
Embodiment 2 of a small-sized electronic apparatus in accordance with the present invention is shown in Pigs. 3 and 4. - Fig. 3 is a system block diagram of the
embodiment 2 of the small-sized electronic apparatus in accordance with the present invention, and Fig. 4 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus. - The
embodiment 2 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A1. In Fig. 3, excepting a timeinformation generating circuit 50 in time information generating means 100, display drive means 60, aninformation display part 80 and atimer control circuit 14, configuration is basically identical to that of the embodiment 1, and therefore like parts are designated by the same reference numerals and are not described again. - On the basis of a predetermined reference signal from the reference
signal generating circuit 2, the timeinformation generating circuit 50 acting as a time counter counts the time and issues a time signal. Then, based on the time signal, the display drive means 60 acting as a liquid crystal driver issues a display drive signal. In turn, based on the display drive signal, the liquid crystal panel in the form of theinformation display part 80 provides a digital time display. - The liquid crystal shutter means 13 constituting the liquid crystal panel of a shutter part B1 configured in the same manner as the embodiment 1 are arranged over the
information display part 80 which is adisplay unit 70 of the watch A1 as shown in Fig. 4. - In order to allow the liquid crystal shutter means 13 of the shutter part B1 to be driven as a shutter, in the same manner as the embodiment 1, a switching signal issued from the switching means 9 is fed as a control signal to the display shutout control means 10 which includes the
control circuit 11 for controlling the opening/closing action of the shutter and the liquid crystalshutter drive circuit 12 for driving the shutter, thereby providing control of application of voltage to theliquid crystal cell 20 serving as the liquid crystal shutter means 13 of thedisplay unit 70, to perform opening/closing of the shutter. - On the basis of the switching signal from the switching means 9, as shown in Fig. 3, the liquid crystal shutter means 13 is switched from the display shutout state to the information display state, whereas control of the further provided
timer control circuit 14 performing the timer counting action (timer counting is started based on the switching signal from the switching means 9), that is, a closing signal issued from thetimer control circuit 14 due to time-out, is provided as a closing signal input to the display shutout control means 10, and this signal acts as a control signal for the display shutout to provide control of application of voltage to theliquid crystal cell 20 serving as the liquid crystal means 13 of thedisplay unit 70 to thereby shutout the display of the liquid crystal panel. Thus, by entering or setting a desired control time (e.g., 5 sec.) into thetimer control circuit 14, it is possible to arbitrarily control the time (e.g., 5 sec.) during which the shutter of theliquid crystal shutter 13 remains open. - Alternatively, depending on the purpose of use, the signal issued from the
timer control circuit 14 may be an opening signal, but instead the output from the switching means 9 may be provided as a closing signal in order to ensure that the liquid crystal shutter means 13 is switched from the information display state to the display shutout state on the basis of the switching signal from the switching means 9 and that the information display state is restored on the basis of control of the signal issued due to time-out from the further providedtimer control circuit 14 performing timer counting action. In either case, the timer counting action starts by use of a reset (R) function or the like. -
Embodiment 3 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 5 to 7. - Fig. 5 is a system block diagram of the
embodiment 3 of the small-sized electronic apparatus in accordance with the present invention, and Fig. 6 is a top plan view of the same small-sized electronic apparatus. Fig. 6(a) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is opened, while Fig. 6(b) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is closed. Fig. 7 is an exploded perspective view showing a schematic configuration of the display part of the same small-sized electronic apparatus. - The
embodiment 3 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A2. Except that information generating means 101 further comprises a chronologicalinformation generating circuit 15, with the provision of first display drive means 61, second display drive means 62 and adisplay unit 17, the watch A2 of Fig. 5 has the same configuration as that of theembodiment 2 and hence uses the same reference numerals. - On the basis of a predetermined reference signal from the reference
signal generating circuit 2, the time counter in the form of the timeinformation generating circuit 50 counts the time and issues a time signal. Then, based on the time signal, the liquid crystal driver in the form of the first drive means 61 imparts a display drive signal to a liquid crystal display panel 20D serving as thedisplay unit 17. The liquid crystal display panel 20D includes an absorption type deflecting plate 210and an absorptiontype deflecting plate 211 which are layered with aliquid crystal cell 201 sandwiched between. A time display appears on atime display part 5D of the liquid crystal display panel 20D. - Likewise, based on a predetermined reference signal from the reference
signal generating circuit 2, the chronological counter in the form of the chronologicalinformation generating circuit 15 counts the chronological measuring time and issues a chronological signal. Then, based on the chronological signal, the second display drive means 62 acting as the liquid crystal driver issue a display drive signal, providing a display of stop watch (chronological measurement) function as chronological information on a chronological display part 15D of the liquid crystal display panel 20D. The actuation, stop and reset to zero of the chronologicalinformation generating circuit 15 are effected by an operation switch signal from ashutter unit 18. - Then, in order to allow the
shutter unit 18 of a shutter part B2 to be driven as a shutter, in the same manner as the embodiment 1, a switching signal issued from the switching means 9 is fed as a control signal to shutter control means 110 which includes an opening/closing control circuit 111 for controlling the shutter opening/closing action and an opening/closing drive circuit 130 for driving the shutter, the switching signal being output as a control signal for controlling the shutter opening/closing action of theshutter unit 18. For the purpose of forming a drive signal for theshutter unit 18, the opening/closing drive circuit 130 is fed with a predetermined reference signal from the referencesignal generating circuit 2. - A liquid
crystal shutter panel 20A constituting theshutter unit 18 includes as shown in Fig. 7 an absorptiontype deflecting plate 21 and a reflectiontype deflecting plate 22 which are layered with aliquid crystal cell 202 interposed therebetween, the cell having segmented therein a timeinformation shutter window 5A, a chronologicalinformation shutter window 15A, as well as a start/stop switch window 31A and areset switch window 32A. - When the same switching means 9 as in the embodiment 1 issue a switching signal, the
shutter unit 18 of the shutter part B2 allows the timeinformation shutter window 5A and chronologicalinformation shutter window 15A as well as the start/stop switch window 31A and resetswitch window 32A, all of which are segmented in theliquid crystal cell 202 of the liquidcrystal shutter panel 20A, to be put in the display states due to the application of voltage, allowing the time information and chronological information displayed on thetime display part 5D and the chronological display part 15D of theunderlying display unit 17 to be visible through thewindshield glass 23. - Description will now be given of
switch members information generating circuit 15. As shown in Fig. 7, transparent electrodes are arranged substantially crosswise in plan view both on the top surface of thewindshield glass 23 and on the bottom surface of a transparent touch panel so that the associated portion of thetransparent touch panel 24 is pressed for contact, whereby detection parts 31B and 32B are provided for detecting the switching action. -
Switch letters reflective surface 30A of areflection plate 30 in such a manner that the detection parts 31B and 32B are coincident in geometry in top plan view with theswitch windows switch letters time display part 5D and chronological display part 15D being displayed, reflected light from thereflection plate 30 allows theswitch letters switch windows crystal shutter panel 20A which has been put in the display state (shutter opened state) as a result of voltage application, and further, through the detection parts 31B and 32B sandwiched between thewindshield glass 23 and thetouch panel 24, rendering them visible as theswitch members touch panel 24 are pressed to put them in a switched-on state, enabling the chronologicalinformation generating circuit 15 to be activated. -
Embodiment 4 of a small-sized electronic apparatus in accordance with the present invention is shown in Figs. 8 to 10. - Fig. 8 is a system block diagram of the
embodiment 4 of the small-sized electronic apparatus in accordance with the present invention, and Fig. 9 is a top plan view of the same small-sized electronic apparatus. Fig. 9(a) is a top plan view showing the state where the shutter of the same small-sized electronic apparatus is opened, Fig. 9(b) is atop plan view showing the state where the shutter of the same small-sized electronic apparatus is closed, and Fig. 10 is an exploded perspective view showing a schematic configuration of a display part of the same small-sized electronic apparatus. - The
embodiment 4 of the small-sized electronic apparatus is described by way of example of a digital quartz watch A3. As shown in Fig. 10, this embodiment has basically substantially the same configuration as theembodiment 3 except that a single-layered liquid crystal panel presents the equivalent function although theembodiment 3 employs a two-layered liquid crystal panel. In Fig. 8, a signal from reference signal generating means 201 is fed to time information control means 151, chronological information control means 152 and an opening/closing drive circuit 121. A signal from the time information control means 151 is fed as a first display drive signal via first display drive means to adisplay unit 71, while a signal from the chronological information control means 152 is fed as a second display drive signal via second display drive means 62 to thedisplay unit 71. - A switching signal output from the switch means 9 is fed as a control signal to shutter control means 120 which include an opening/
closing control circuit 112 for providing a control of opening/closing action of the shutter for switching and an opening/closing drive circuit 121 for driving the switching shutter, the switching signal being output as a control signal for controlling the shutter opening/closing action of a switchingshutter unit 81 for switching. At the same time, the switching signal output from the switch means 9 is fed to both the time information control means 151 and the chronological information control means 152. For the purpose of forming a drive signal for theshutter unit 81 for switching, the opening/closing drive circuit 121 is fed with a predetermined reference signal from the reference signal generating means 201. - As shown in Pigs. 9 and 10, a
display segment 5E driven by the time information control means 151 and adisplay segment 15E driven by the chronological information control means 152 are put in the transmitted state, allowing the reflected light from thereflective surface 30A of thereflection plate 30 to pass through, to render the display information visible, with thedisplay segments liquid crystal cell 200 just in an inverted state (negative state) relative to the segment display of theembodiment 3, on the basis of the switching signal from the switch means 9, and this signal is fed to the time information control means 151 and the chronological information control means 152. - Then, with respect to the
switch members 31 and 32 (see Fig. 9) for actuating, stopping and zero resetting the chronological information control means 152, theswitch letters switch windows display shutter panel 300 which has been put in the display state as a result of voltage application, and further through the detection parts 31B and 32B sandwiched between thewindshield glass 23 and thetouch panel 24, rendering them visible as theswitch members touch panel 24 are pressed to put them in a switched-on state, enabling the chronological information control means 152 to be actuated. This is the same as theembodiment 3. - Arrangement is such that as shown in Fig. 10 either one of the absorption
type deflecting plate 21 and the reflectiontype deflecting plate 22 is fixed, with the other deflecting plate being rotated. At the angle (0 º) where the transmission axis X of the absorptiontype deflecting plate 21 is parallel to the transmission axis X of the reflectiontype deflecting plate 22, a reflection characteristic is exhibited without any voltage application with the 90º twisted nematic (TN)liquid crystal cell 200 interposed, whereas a transmission characteristic is exhibited with the presence of voltage application (voltage applied segment). For this reason, the external light source presents a lustered reflection characteristic without any voltage application, allowing provision of a shutter with a tone of metallic luster (metallic tone) with the incidence of light through thewindshield glass 23 of the watch. Use of the reflection type deflecting plates as both the deflecting plates would also ensure the same functions and effects as the above. - Although in the above embodiments 1 to 4 the absorption
type deflecting plate 21 was used as the upper deflecting plate with the reflectiontype deflecting plate 22 as the lower deflecting plate, it would also be effective to use the reflectiontype deflecting plate 22 as both the upper and lower deflecting plates or alternatively to use the reflectiontype deflecting plate 22 as the upper deflecting plate with the absorptiontype deflecting plate 21 as the lower deflecting plate. - As set forth hereinabove, the present invention is suitable for use as a watch or other small-sized electronic apparatus.
Claims (10)
- A small-sized electronic apparatus having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from said information generating means, and a display unit for providing an information display on the basis of an output signal from said display drive means, wherein said electronic apparatus comprises switch means for detecting a switch input, and display shutout control means for providing switching control of said display unit between information display state and display shutout state on the basis of an output signal from said switch means.
- A small-sized electronic apparatus according to claim 1, wherein display information of said display unit is subjected to a display shutout by liquid crystal shutter means which uses liquid crystal and which are provided in said display unit.
- A small-sized electronic apparatus according to claim 1 or 2, wherein said switch means are sensor switch means for detecting a sensor switch input.
- A small-sized electronic apparatus having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from said information generating means, and a display unit for providing an information display on the basis of an output signal from said display drive means, wherein said electronic apparatus comprises timer control means for performing timer counting action on the basis of an output signal from said switch means, and display shutout control means for providing switching control of said display unit between information display state and display shutout state on the basis of a time-out signal from said timer control means.
- A small-sized electronic apparatus according to any one of claims 1, 2 and 3, wherein said display shutout control means are configured to provide a switching control of said display unit from display shutout state to information display state on the basis of an output signal from said switch means, and wherein said electronic apparatus further comprises timer control means for performing timer counting action on the basis of an output signal from said switch means, and wherein on the basis of a time-out signal from said timer control means said display shutout control means provide a switching control of said display unit from information display state to display shutout state.
- A small-sized electronic apparatus according to any one of the claims 1, 2 and 3, wherein said display shutout control means are configured to provide a switching control of said display unit from an information display state to a display shutout state on the basis of an output signal from said switch means, and wherein said electronic apparatus further comprises timer control means for performing a timer counting action on the basis of an output signal from said switch means, and wherein on the basis of a time-out signal from said timer control means said display shutout control means provide a switching control of said display unit from display shutout state to information display state.
- A small-sized electronic apparatus according to any one of the claims 2, 3, 5, and 6, wherein said liquid crystal shutter means comprises a reflection type deflecting plate.
- A small-sized electronic apparatus having information generating means, display drive means for issuing a signal for display and drive on the basis of a signal from said information generating means, and a display unit for providing an information display on the basis of an output signal from said display drive means, wherein said display unit is provided with a switch member, a shutter unit in the form of a shutter having a switch operation opening indicative of an opening of said switch member, and shutter control means for providing opening/closing control of said shutter unit, and wherein a shutter of said switch operation opening of said shutter unit is opened under control of said shutter control means.
- A small-sized electronic apparatus according to claim 8, wherein said shutter of said shutter unit is a liquid crystal shutter which uses liquid crystal.
- A small-sized electronic apparatus according to claim 9, wherein said liquid crystal shutter means comprises a reflection type deflecting plate.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24260197 | 1997-09-08 | ||
JP24260197A JP4187809B2 (en) | 1997-09-08 | 1997-09-08 | Small electronic equipment |
PCT/JP1998/004002 WO1999013384A1 (en) | 1997-09-08 | 1998-09-07 | Miniature electronic device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0947896A1 true EP0947896A1 (en) | 1999-10-06 |
EP0947896A4 EP0947896A4 (en) | 2006-01-04 |
EP0947896B1 EP0947896B1 (en) | 2010-03-10 |
Family
ID=17091481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP98941745A Expired - Lifetime EP0947896B1 (en) | 1997-09-08 | 1998-09-07 | Miniature electronic device |
Country Status (8)
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US (1) | US6760003B1 (en) |
EP (1) | EP0947896B1 (en) |
JP (1) | JP4187809B2 (en) |
CN (1) | CN1145864C (en) |
BR (1) | BR9806169A (en) |
DE (1) | DE69841543D1 (en) |
HK (1) | HK1021758A1 (en) |
WO (1) | WO1999013384A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5537793B2 (en) * | 1999-04-07 | 2014-07-02 | カシオ計算機株式会社 | Positioning device and positioning time control method |
US7724208B1 (en) | 1999-08-19 | 2010-05-25 | Puredepth Limited | Control of depth movement for visual display with layered screens |
WO2001015127A1 (en) | 1999-08-19 | 2001-03-01 | Deep Video Imaging Limited | Display method for multiple layered screens |
EP1208557A4 (en) | 1999-08-19 | 2007-03-07 | Pure Depth Ltd | Data display for multiple layered screens |
NZ511444A (en) | 2001-05-01 | 2004-01-30 | Deep Video Imaging Ltd | Information display |
NZ514119A (en) * | 2001-09-11 | 2004-06-25 | Deep Video Imaging Ltd | Improvement to instrumentation |
NZ521505A (en) * | 2002-09-20 | 2005-05-27 | Deep Video Imaging Ltd | Multi-view display |
NZ525956A (en) * | 2003-05-16 | 2005-10-28 | Deep Video Imaging Ltd | Display control system for use with multi-layer displays |
US20050073471A1 (en) * | 2003-10-03 | 2005-04-07 | Uni-Pixel Displays, Inc. | Z-axis redundant display/multilayer display |
US7607243B2 (en) | 2006-05-03 | 2009-10-27 | Nike, Inc. | Athletic or other performance sensing systems |
WO2009033034A1 (en) | 2007-09-07 | 2009-03-12 | Nike, Inc. | Wearable device assembly having athletic functionality |
US8517896B2 (en) | 2008-04-02 | 2013-08-27 | Nike, Inc. | Wearable device assembly having athletic functionality |
US8890771B2 (en) | 2010-01-06 | 2014-11-18 | Apple Inc. | Transparent electronic device |
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JPS58221183A (en) | 1982-06-17 | 1983-12-22 | Kawaguchiko Seimitsu Kk | Watch |
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JP2519939B2 (en) * | 1987-07-02 | 1996-07-31 | 旭硝子株式会社 | Liquid crystal element |
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1997
- 1997-09-08 JP JP24260197A patent/JP4187809B2/en not_active Expired - Fee Related
-
1998
- 1998-09-07 DE DE69841543T patent/DE69841543D1/en not_active Expired - Lifetime
- 1998-09-07 WO PCT/JP1998/004002 patent/WO1999013384A1/en active Application Filing
- 1998-09-07 EP EP98941745A patent/EP0947896B1/en not_active Expired - Lifetime
- 1998-09-07 BR BR9806169-0A patent/BR9806169A/en not_active IP Right Cessation
- 1998-09-07 CN CNB988013053A patent/CN1145864C/en not_active Expired - Fee Related
- 1998-09-07 US US09/297,586 patent/US6760003B1/en not_active Expired - Fee Related
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2000
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US4240021A (en) * | 1977-05-20 | 1980-12-16 | Citizen Watch Co., Ltd. | Solar cell battery charging control system |
US5455808A (en) * | 1993-11-26 | 1995-10-03 | Asulab S.A. | Timepiece with a mobile display |
GB2291723A (en) * | 1994-07-26 | 1996-01-31 | Nec Corp | Message indicating |
DE29618447U1 (en) * | 1995-10-31 | 1997-03-13 | Weissgerber Fritz | Clock, in particular wristwatch |
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Also Published As
Publication number | Publication date |
---|---|
BR9806169A (en) | 1999-10-19 |
CN1239558A (en) | 1999-12-22 |
JP4187809B2 (en) | 2008-11-26 |
JPH1184033A (en) | 1999-03-26 |
WO1999013384A1 (en) | 1999-03-18 |
EP0947896B1 (en) | 2010-03-10 |
HK1021758A1 (en) | 2000-06-30 |
CN1145864C (en) | 2004-04-14 |
DE69841543D1 (en) | 2010-04-22 |
US6760003B1 (en) | 2004-07-06 |
EP0947896A4 (en) | 2006-01-04 |
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